@article{97b4efbe604046c9b0d12b55d48d522e,
title = "Source apportionment and health risk assessment of nitrate in foothill aquifers of Western Ghats, South India",
abstract = "The present research reports the level of nitrate (NO3-), associated health risks and possible sources of contamination in groundwater from south India. Many samples (32%) are above or approaching the recommended level of NO3- for safe drinking water. The correlation analysis indicates different sources of NO3- contamination in different regions rather than a common origin. The isotopic measurements provide information about potential nitrogen sources contributing NO3- to the groundwater. Based on isotope analysis, the sources of NO3- in the groundwater of this region are likely to be from (a) septic sewage (b) organic nitrogen (animal and livestock excreta) (c) sewage (domestic & chemical fertilizers). Among the sample analyzed sewage, manure and septic sewage contribute 46%, 23% and 31% NO3- to groundwater. The HQ > 1 indicates non-carcinogenic health risk due to consumption of high NO3- in drinking water. Among the studied age groups, infants are exposed to higher risk than children and adults. Results indicate that groundwater of this region is polluted with NO3- due to anthropogenic activities. Continuous consumption of such water may pose serious health risk to the residents.",
keywords = "Correlation, Groundwater, Health risk, N-isotopes, Nitrate",
author = "Banajarani Panda and S. Chidambaram and Daniel Snow and Arindam malakar and Singh, {Dhiraj Kr} and Ramanathan, {A. L.}",
note = "Funding Information: The authors would like to thank, The Science & Engineering Research Board (SERB), New Delhi (No: SB/S4/ES-699/2013 ) for providing necessary financial support to carry out this study and the author Banajarani Panda wish to express her sincere thanks to Department of Science and Technology for providing the Inspire fellowship (No: DST/INSPIRE Fellowship/ [IF150615] , 27th October 2015). The author Banajarani Panda would also like to thank Department of Science and Technology (DST), Govt. of India, Daugherty Water for Food Institute (DWFI) and Indo-US Science and Technology Forum (IUSSTF) at University of Nebraska-Lincoln (UNL), USA for providing Water Advanced Research & Innovation (WARI) fellowship (IUSSTF/WARI Internships/Banajarani Panda/ I-3-2017 Dated: 03.05.2018) to carry out necessary hydrochemical analysis at Water Sciences Laboratory, Lincoln, USA. Funding Information: The authors would like to thank, The Science & Engineering Research Board (SERB), New Delhi (No: SB/S4/ES-699/2013) for providing necessary financial support to carry out this study and the author Banajarani Panda wish to express her sincere thanks to Department of Science and Technology for providing the Inspire fellowship (No: DST/INSPIRE Fellowship/[IF150615], 27th October 2015). The author Banajarani Panda would also like to thank Department of Science and Technology (DST), Govt. of India, Daugherty Water for Food Institute (DWFI) and Indo-US Science and Technology Forum (IUSSTF) at University of Nebraska-Lincoln (UNL), USA for providing Water Advanced Research & Innovation (WARI) fellowship (IUSSTF/WARI Internships/Banajarani Panda/ I-3-2017 Dated: 03.05.2018) to carry out necessary hydrochemical analysis at Water Sciences Laboratory, Lincoln, USA. Publisher Copyright: {\textcopyright} 2021",
year = "2022",
month = jan,
day = "1",
doi = "10.1016/j.ecoenv.2021.113075",
language = "English (US)",
volume = "229",
journal = "Ecotoxicology and Environmental Safety",
issn = "0147-6513",
publisher = "Academic Press Inc.",
}